ES2376016T3 - Aparato y procedimiento para tomar en cuenta de los efectos de las discontinuidades en la salida del control autom�?tico de ganancia en un sistema de múltiples portadoras. - Google Patents

Aparato y procedimiento para tomar en cuenta de los efectos de las discontinuidades en la salida del control autom�?tico de ganancia en un sistema de múltiples portadoras. Download PDF

Info

Publication number: ES2376016T3
Authority: ES; Spain
Prior art keywords: coefficients; interlaced; pilots; gain control; channel
Prior art date: 2007-03-05
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Active

Application number

ES08731357T

Other languages

English (en)

Spanish (es)

Inventor

Matthias Brehler

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Qualcomm Inc

Original Assignee

Qualcomm Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2007-03-05

Filing date

2008-03-04

Publication date

2012-03-08

2007-07-12 Priority claimed from US11/777,263 external-priority patent/US20080219332A1/en

2008-03-04 Application filed by Qualcomm Inc filed Critical Qualcomm Inc

2012-03-08 Application granted granted Critical

2012-03-08 Publication of ES2376016T3 publication Critical patent/ES2376016T3/es

Status Active legal-status Critical Current

2028-03-04 Anticipated expiration legal-status Critical

Links

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Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3089—Control of digital or coded signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2662—Symbol synchronisation
- H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Power Engineering (AREA)
Circuits Of Receivers In General (AREA)
Synchronisation In Digital Transmission Systems (AREA)
Mobile Radio Communication Systems (AREA)
Detection And Prevention Of Errors In Transmission (AREA)
Cash Registers Or Receiving Machines (AREA)
Control Of Metal Rolling (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Control Of Amplification And Gain Control (AREA)

ES08731357T 2007-03-05 2008-03-04 Aparato y procedimiento para tomar en cuenta de los efectos de las discontinuidades en la salida del control autom�?tico de ganancia en un sistema de múltiples portadoras. Active ES2376016T3 (es)

Applications Claiming Priority (7)

Application Number	Priority Date	Filing Date	Title
US89305807P	2007-03-05	2007-03-05
US89306007P	2007-03-05	2007-03-05
US893060P		2007-03-05
US893058P		2007-03-05
US11/777,263 US20080219332A1 (en)	2007-03-05	2007-07-12	Apparatus and methods accounting for automatic gain control in a multi carrier system
US777263		2007-07-12
PCT/US2008/055807 WO2008109607A1 (en)	2007-03-05	2008-03-04	Apparatus and methods accounting for effects of discontinuities at the output of automatic gain control in a multi carrier system

Publications (1)

Publication Number	Publication Date
ES2376016T3 true ES2376016T3 (es)	2012-03-08

Family

ID=41161266

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES08731357T Active ES2376016T3 (es)	2007-03-05	2008-03-04	Aparato y procedimiento para tomar en cuenta de los efectos de las discontinuidades en la salida del control autom�?tico de ganancia en un sistema de múltiples portadoras.

Country Status (11)

Country	Link
EP (2)	EP2130338B1 (zh)
JP (2)	JP5204131B2 (zh)
KR (2)	KR101129207B1 (zh)
CN (1)	CN101641920B (zh)
AT (1)	ATE539530T1 (zh)
BR (2)	BRPI0808485A2 (zh)
CA (2)	CA2677971A1 (zh)
ES (1)	ES2376016T3 (zh)
RU (2)	RU2009136568A (zh)
TW (2)	TWI370650B (zh)
WO (2)	WO2008109600A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20100182899A1 (en) *	2009-01-17	2010-07-22	Qualcomm Incorporated	OFDM Time Basis Matching With Pre-FFT Cyclic Shift
CN101662446B (zh) *	2009-09-28	2013-01-16	中兴通讯股份有限公司	信道估计方法及装置
JP5487996B2 (ja)	2010-01-25	2014-05-14	富士通株式会社	適応等化器および適応等化方法
US8718210B2 (en) *	2011-09-20	2014-05-06	Qualcomm Incorporated	Channel impulse response estimation for wireless receiver
US20130107785A1 (en) *	2011-11-02	2013-05-02	Qualcomm Incorporated	Tracking loop enhancements for mitigating signal interference and adjusting signal power
CN103368874B (zh) *	2012-03-30	2016-07-06	富士通株式会社	信道估计装置、方法及用户设备
CN103379607B (zh) *	2012-04-17	2018-01-30	中兴通讯股份有限公司	Td‑hspa+终端设备的增益控制方法和装置
GB2497149B (en) *	2012-05-22	2013-11-20	Aeroflex Ltd	A noise power estimation method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4630305A (en) *	1985-07-01	1986-12-16	Motorola, Inc.	Automatic gain selector for a noise suppression system
DE60112451T2 (de) *	2001-11-30	2006-04-06	Freescale Semiconductors, Inc., Austin	Transientenkompensation für Leistungverstärker in OFDM-Systemen
US8428001B2 (en) *	2005-03-10	2013-04-23	Qualcomm Incorporated	Timing corrections in a multi carrier system and propagation to a channel estimation time filter
US8165167B2 (en) *	2005-03-10	2012-04-24	Qualcomm Incorporated	Time tracking for a communication system
JP4610401B2 (ja) *	2005-04-13	2011-01-12	株式会社エヌ・ティ・ティ・ドコモ	チャネル推定装置
CN100518151C (zh) *	2005-05-01	2009-07-22	中兴通讯股份有限公司	多输入多输出的信道估计装置、***及方法
JP2006352746A (ja) *	2005-06-20	2006-12-28	Fujitsu Ltd	直交周波数分割多重伝送用受信機
CN101485127A (zh) *	2006-08-03	2009-07-15	松下电器产业株式会社	接收装置、接收方法及集成电路

2008
- 2008-03-04 EP EP08731357A patent/EP2130338B1/en not_active Not-in-force
- 2008-03-04 RU RU2009136568/09A patent/RU2009136568A/ru not_active Application Discontinuation
- 2008-03-04 AT AT08731357T patent/ATE539530T1/de active
- 2008-03-04 BR BRPI0808485-8A patent/BRPI0808485A2/pt not_active IP Right Cessation
- 2008-03-04 WO PCT/US2008/055797 patent/WO2008109600A1/en active Application Filing
- 2008-03-04 ES ES08731357T patent/ES2376016T3/es active Active
- 2008-03-04 RU RU2009136569/09A patent/RU2009136569A/ru not_active Application Discontinuation
- 2008-03-04 KR KR1020097020684A patent/KR101129207B1/ko not_active IP Right Cessation
- 2008-03-04 CA CA002677971A patent/CA2677971A1/en not_active Abandoned
- 2008-03-04 JP JP2009552837A patent/JP5204131B2/ja not_active Expired - Fee Related
- 2008-03-04 CN CN2008800070878A patent/CN101641920B/zh not_active Expired - Fee Related
- 2008-03-04 CA CA002678113A patent/CA2678113A1/en not_active Abandoned
- 2008-03-04 EP EP08743672A patent/EP2130339A1/en not_active Withdrawn
- 2008-03-04 BR BRPI0808484-0A patent/BRPI0808484A2/pt not_active IP Right Cessation
- 2008-03-04 WO PCT/US2008/055807 patent/WO2008109607A1/en active Application Filing
- 2008-03-04 KR KR1020097020683A patent/KR101126989B1/ko not_active IP Right Cessation
- 2008-03-04 JP JP2009552836A patent/JP5242599B2/ja not_active Expired - Fee Related
- 2008-03-05 TW TW097107709A patent/TWI370650B/zh not_active IP Right Cessation
- 2008-03-05 TW TW097107712A patent/TWI379559B/zh not_active IP Right Cessation

Also Published As

Publication number	Publication date
KR20090115771A (ko)	2009-11-05
TWI379559B (en)	2012-12-11
JP2010520722A (ja)	2010-06-10
BRPI0808484A2 (pt)	2014-07-08
JP5242599B2 (ja)	2013-07-24
JP5204131B2 (ja)	2013-06-05
RU2009136568A (ru)	2011-04-10
KR20090115772A (ko)	2009-11-05
ATE539530T1 (de)	2012-01-15
CN101641920B (zh)	2013-05-22
CA2677971A1 (en)	2008-09-12
WO2008109607A1 (en)	2008-09-12
CA2678113A1 (en)	2008-09-12
BRPI0808485A2 (pt)	2014-07-01
CN101641920A (zh)	2010-02-03
KR101126989B1 (ko)	2012-04-12
TWI370650B (en)	2012-08-11
EP2130338A1 (en)	2009-12-09
TW200913583A (en)	2009-03-16
EP2130338B1 (en)	2011-12-28
WO2008109600A1 (en)	2008-09-12
EP2130339A1 (en)	2009-12-09
JP2010520723A (ja)	2010-06-10
RU2009136569A (ru)	2011-04-10
KR101129207B1 (ko)	2012-04-12
TW200849903A (en)	2008-12-16

Publication	Publication Date	Title
ES2376016T3 (es)	2012-03-08	Aparato y procedimiento para tomar en cuenta de los efectos de las discontinuidades en la salida del control autom�?tico de ganancia en un sistema de múltiples portadoras.
US7929627B2 (en)	2011-04-19	OFDM receiver, integrated circuit and receiving method
US20080219332A1 (en)	2008-09-11	Apparatus and methods accounting for automatic gain control in a multi carrier system
ES2322077T3 (es)	2009-06-16	Transmision escalonada de señales piloto para una estimacion de canal y seguimiento del tiempo.
ES2282300T3 (es)	2007-10-16	Metodo y distribuciones en un sistema de telecomunicaciones.
AU2005287062C1 (en)	2010-04-29	Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
EP1714452B1 (en)	2015-02-18	Pilot transmission and channel estimation for an ofdm system with excess delay spread
US7342974B2 (en)	2008-03-11	Channel estimation in OFDM systems
AU2007304830B2 (en)	2012-09-06	Improving receiver performance in a communication network
US7418046B2 (en)	2008-08-26	Pilot transmission and channel estimation for multiple transmitters
KR101396142B1 (ko)	2014-05-19	시간 주파수로 인터리빙된 직교 주파수 분할 다중화 시스템에서 성능 개선 방법
US8098567B2 (en)	2012-01-17	Timing adjustments for channel estimation in a multi carrier system
US7630465B2 (en)	2009-12-08	Wireless communications device providing time and frequency-domain channel estimates interpolation and related methods
ES2402515T3 (es)	2013-05-06	Método y aparato para transmisión y recepción de datos
ES2278661T3 (es)	2007-08-16	Simbolos de referencia para la estimacion de canales con transmision multiportadora.
KR20070103786A (ko)	2007-10-24	Ｏｆｄｍ 통신 시스템에 대한 심볼 시간 추적
JP2008011037A (ja)	2008-01-17	無線送信装置及びガードインターバル挿入方法
US20040240379A1 (en)	2004-12-02	Mode detection for OFDM signals
EP2131512A1 (en)	2009-12-09	Ofdm reception device, ofdm reception method, ofdm reception circuit, integrated circuit, and program
JP2005538659A (ja)	2005-12-15	通信システムにおけるチャネル推定
EP2884682A1 (en)	2015-06-17	Receiver, method for estimating frequency response of transmission path by receiver
JP5181883B2 (ja)	2013-04-10	無線通信システム、無線通信装置、無線通信方法、およびプログラム
KR20090117941A (ko)	2009-11-16	보간을 이용하여 채널 추정을 수행하기 위한 시스템 및 방법
Witschnig et al.	2003	The advantages of a unique word for synchronisation and channel estimation in a SC/FDE system